VDAVIOutputSegmentedStream::FlushResult VDAVIOutputSegmentedVideoStream::Flush(uint32 samples, bool force) {
if (!samples)
return kFlushOK;
bool gotall = true;
if (samples > mScheduledSamples) {
if (!force || !mScheduledSamples) {
if (mbEnded && mPendingRuns.empty())
return kFlushEnded;
else
return kFlushPending;
}
gotall = false;
samples = mScheduledSamples;
}
samples += mExtraSamples;
while(samples > 0) {
Run& run = mClearedRuns.front();
while(!run.mBlocks.empty() && samples) {
Block& block = run.mBlocks.front();
mpOutputStream->write(block.flags, block.data, block.size, 1);
delete[] (char *)block.data;
run.mBlocks.pop_front();
--samples;
--mScheduledSamples;
--mBufferedSamples;
}
if (run.mBlocks.empty())
mClearedRuns.pop_front();
}
mExtraSamples = samples;
return kFlushOK;
}
void VDCreateTestPal8Video(VDGUIHandle h) {
CPUEnableExtensions(CPUCheckForExtensions());
try {
tVDInputDrivers inputDrivers;
std::vector<int> xlat;
VDGetInputDrivers(inputDrivers, IVDInputDriver::kF_Video);
const VDStringW filter(VDMakeInputDriverFileFilter(inputDrivers, xlat));
const VDFileDialogOption opt[]={
{ VDFileDialogOption::kSelectedFilter },
0
};
int optval[1]={0};
const VDStringW srcfile(VDGetLoadFileName('pl8s', h, L"Choose source file", filter.c_str(), NULL, opt, optval));
if (srcfile.empty())
return;
IVDInputDriver *pDrv;
int filtidx = xlat[optval[0] - 1];
if (filtidx < 0)
pDrv = VDAutoselectInputDriverForFile(srcfile.c_str(), IVDInputDriver::kF_Video);
else {
tVDInputDrivers::iterator itDrv(inputDrivers.begin());
std::advance(itDrv, filtidx);
pDrv = *itDrv;
}
vdrefptr<InputFile> pIF(pDrv->CreateInputFile(0));
pIF->Init(srcfile.c_str());
const VDStringW dstfile(VDGetSaveFileName('pl8d', h, L"Choose destination 8-bit file", L"Audio-video interleaved (*.avi)\0*.avi\0All files\0*.*", L"avi", NULL, NULL));
if (dstfile.empty())
return;
vdrefptr<IVDVideoSource> pVS;
pIF->GetVideoSource(0, ~pVS);
IVDStreamSource *pVSS = pVS->asStream();
const VDPosition frames = pVSS->getLength();
if (!pVS->setTargetFormat(nsVDPixmap::kPixFormat_XRGB8888))
throw MyError("Cannot set decompression format to 32-bit.");
vdautoptr<IVDMediaOutputAVIFile> pOut(VDCreateMediaOutputAVIFile());
IVDMediaOutputStream *pVSOut = pOut->createVideoStream();
const VDPixmap& pxsrc = pVS->getTargetFormat();
const uint32 rowbytes = (pxsrc.w+3) & ~3;
AVIStreamHeader_fixed hdr;
hdr.fccType = 'sdiv';
hdr.fccHandler = 0;
hdr.dwFlags = 0;
hdr.wPriority = 0;
hdr.wLanguage = 0;
hdr.dwScale = pVSS->getStreamInfo().dwScale;
hdr.dwRate = pVSS->getStreamInfo().dwRate;
hdr.dwStart = 0;
hdr.dwLength = 0;
hdr.dwInitialFrames = 0;
hdr.dwSuggestedBufferSize = 0;
hdr.dwQuality = -1;
hdr.dwSampleSize = 0;
hdr.rcFrame.left = 0;
hdr.rcFrame.top = 0;
hdr.rcFrame.right = (short)pxsrc.w;
hdr.rcFrame.bottom = (short)pxsrc.h;
pVSOut->setStreamInfo(hdr);
vdstructex<BITMAPINFOHEADER> bih;
bih.resize(sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD)*252);
bih->biSize = sizeof(BITMAPINFOHEADER);
bih->biWidth = pxsrc.w;
bih->biHeight = pxsrc.h;
bih->biPlanes = 1;
bih->biBitCount = 8;
bih->biCompression = BI_RGB;
bih->biSizeImage = rowbytes*pxsrc.h;
bih->biXPelsPerMeter = 0;
bih->biYPelsPerMeter = 0;
bih->biClrUsed = 252;
bih->biClrImportant = 252;
RGBQUAD *pal = (RGBQUAD *)((char *)bih.data() + sizeof(BITMAPINFOHEADER));
for(int i=0; i<252; ++i) {
pal[i].rgbRed = (BYTE)((i/42)*51);
pal[i].rgbGreen = (BYTE)((((i/6)%7)*85)>>1);
pal[i].rgbBlue = (BYTE)((i%6)*51);
pal[i].rgbReserved = 0;
}
pVSOut->setFormat(bih.data(), bih.size());
pOut->init(dstfile.c_str());
ProgressDialog dlg((HWND)h, "Processing video stream", "Palettizing frames", (long)frames, true);
vdblock<uint8> outbuf(rowbytes * pxsrc.h);
const vdpixsize w = pxsrc.w;
const vdpixsize h = pxsrc.h;
try {
for(uint32 frame=0; frame<frames; ++frame) {
pVS->getFrame(frame);
const uint8 *src = (const uint8 *)pxsrc.data;
ptrdiff_t srcpitch = pxsrc.pitch;
uint8 *dst = &outbuf[rowbytes * (pxsrc.h - 1)];
for(int y=0; y<h; ++y) {
const uint8 *dr = ditherred[y & 15];
const uint8 *dg = dithergrn[y & 15];
const uint8 *db = ditherblu[y & 15];
for(int x=0; x<w; ++x) {
const uint8 b = (uint8)((((src[0] * 1286)>>8) + dr[x&15]) >> 8);
const uint8 g = (uint8)((((src[1] * 1543)>>8) + dg[x&15]) >> 8);
const uint8 r = (uint8)((((src[2] * 1286)>>8) + db[x&15]) >> 8);
src += 4;
dst[x] = (uint8)(r*42 + g*6 + b);
}
vdptrstep(dst, -(ptrdiff_t)rowbytes);
vdptrstep(src, srcpitch - w*4);
}
pVSOut->write(AVIOutputStream::kFlagKeyFrame, outbuf.data(), outbuf.size(), 1);
dlg.advance(frame);
dlg.check();
}
} catch(const MyUserAbortError&) {
}
pVSOut->flush();
pOut->finalize();
} catch(const MyError& e) {
e.post((HWND)h, g_szError);
}
}